[Alex Mai]

Yes, for the fixed effects regression this does not matter. And for fixed-effects regression , the e-xb scattergram is better.

I apologize again for the confusion. I really was thinking about a random effects model. I use random effects a lot in my work, and fixed effects only rarely, so my thoughts tend to drift into the -re- mode.

Dear Clyde,

Thank you very much once more! And no worries for the "drift" into re model Actually it is this "drift" that stimulated me to go deep into this topic!